Methyl iodide → HCID 86646913, compound

Participants

Reaction Steps

A mixture of 3-(2-chloro-4-pyrimidinyl)-2-(4-fluorophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-b]pyridazine (i.e. the product of Step A) (50.0 mg, 0.15 mmol), iodomethane (0.019 mL, 0.31 mmol) and potassium carbonate (63 mg, 0.46 mmol) in N,N-dimethylformamide (3 mL) was stirred at room temperature for 2 h, followed by at 50° C. for 1 h and then at 100° C. for 2 h. The reaction mixture was diluted with water and extracted with ethyl acetate (3×10 mL). The combined organic phase was dried over magnesium sulfate, filtered and concentrated under reduced pressure. The crude residue was purified by medium pressure liquid chromatography using 20-80% ethyl acetate in hexanes as eluant to give 37.4 mg of the title product, a compound of the present invention, as a white solid.

Provenance & Evidence